Milling head connecting device for numerical control gantry machining center

By designing the internal and external spline meshing and threaded rod rotation structure of the milling head connection device, the problem of complex milling head disassembly and assembly was solved, realizing rapid disassembly and assembly and stable connection, thus improving the operating efficiency of CNC gantry machining centers.

CN223997405UActive Publication Date: 2026-03-17DALIAN REWIND TRA TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-23
Publication Date
2026-03-17

AI Technical Summary

Technical Problem

The milling head of existing CNC gantry machining centers requires external tools for disassembly and assembly, which is complicated and inefficient.

Method used

A milling head connection device including a connecting mechanism and a reinforcing mechanism was designed. The milling head can be easily disassembled and assembled through the engagement of internal and external splines and the rotation of the threaded rod, while the elasticity of the spring ensures the stability of the threaded rod.

Benefits of technology

It enables quick assembly and disassembly of the milling head without the need for external tools, improving operational efficiency and ensuring connection stability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of milling head connection, and discloses a milling head connecting device for a numerical control gantry machining center, which comprises a connecting shaft, a connecting mechanism arranged at the right end of the connecting shaft, a reinforcing mechanism arranged at the top of the connecting mechanism, and a milling head body arranged on the right side of the connecting mechanism, a right-angle plate is fixedly connected to the outer side of the socket, a threaded rod is rotationally connected into the right-angle plate, a threaded plate is in threaded connection with the outer wall of the threaded rod, a clamping block is fixedly connected into the threaded plate, and an insertion block is fixedly connected to the left end of the milling head body. According to the milling head connecting device for the numerical control gantry machining center, through the arranged connecting mechanism, the second external spline can be drawn out from the interior of the second internal spline, so that the milling head body can be detached, the detaching operation can be achieved without the help of an external tool in the detaching process, the good operation efficiency can be achieved, and the practicability is high. And dismounting and connection work can be conveniently carried out.
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Description

Technical Field

[0001] This utility model relates to the field of milling head connection technology, specifically a milling head connection device for CNC gantry machining centers. Background Technology

[0002] A CNC gantry machining center is a high-efficiency and precision CNC machine tool, mainly used for machining large and heavy workpieces. Its structural features include a huge gantry, which is similar to a sturdy bridge spanning the machining area, providing a stable and spacious working space for the cutting tools and workpieces.

[0003] Milling heads are used in CNC gantry machining centers. They are usually designed to be detachable, which makes them easy to inspect and maintain during long-term use. However, common milling heads require complex operations with the help of external tools to disassemble and assemble, which does not achieve good operating efficiency and is not convenient for disassembly and assembly work. Utility Model Content

[0004] The purpose of this invention is to provide a milling head connecting device for CNC gantry machining centers to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a milling head connecting device for a CNC gantry machining center, comprising a connecting shaft, a connecting mechanism at the right end of the connecting shaft, a reinforcing mechanism at the top of the connecting mechanism, and a milling head body on the right side of the connecting mechanism;

[0006] The connecting mechanism includes a socket, which is fixedly connected to the right end of the connecting shaft. A right-angle plate is fixedly connected to the outside of the socket. A threaded rod is rotatably connected inside the right-angle plate. A threaded plate is threadedly connected to the outer wall of the threaded rod. A locking block is fixedly connected inside the threaded plate. A plug is fixedly connected to the left end of the milling head body. An external spline II is fixedly connected to the outer wall of the milling head body. An internal spline II is fixedly connected to the right side of the socket.

[0007] Preferably, the inner ring of the second inner spline engages with the outer ring of the second outer spline, and an opening is provided on the left side of the second inner spline, through which the insert block passes, allowing the insert block to move through the opening.

[0008] Preferably, the insert has slots on both the front and back sides, and the slot is movably connected to the inner wall of the slot, so that the insert can be inserted into the inside of the slot to achieve the purpose of limiting the position.

[0009] Preferably, the socket has openings on both the front and back, and the locking block passes through the openings and moves, allowing the locking block to move through the openings.

[0010] Preferably, the threads on the outer walls of the two ends of the threaded rod are in opposite directions, and a handwheel is fixedly connected to the front end of the threaded rod, so that the threaded rod can be rotated by the handwheel, thereby achieving the purpose of installation.

[0011] Preferably, the reinforcement mechanism includes a support box, which is fixedly connected to the top of the socket. A spring is fixedly connected to the inner wall of the support box. A protrusion is fixedly connected to the end of the spring away from the support box. A push shaft is fixedly connected to the top of the protrusion. An inner spline is fixedly connected to one side of the protrusion. An outer spline engages with the inner ring of the inner spline, which facilitates the reinforcement and limiting of the threaded rod.

[0012] Preferably, the top of the support box has a slot, the push shaft passes through the slot, and the protrusion is slidably connected to the inner wall of the support box, so that the push shaft can push the protrusion to move and compress the spring.

[0013] Preferably, the external spline is fixedly connected to the outer wall of the threaded rod, and the protrusion passes through the support box and moves, so that the protrusion can drive the internal spline to move.

[0014] Compared with the prior art, this utility model provides a milling head connecting device for CNC gantry machining centers, which has the following advantages:

[0015] 1. The milling head connecting device of this CNC gantry machining center allows the outer spline 2 to be pulled out from the inside of the inner spline 2 through the set connecting mechanism, thereby realizing the disassembly of the milling head body. The disassembly and assembly can be carried out without the aid of external tools, achieving good operating efficiency and facilitating the disassembly and assembly work.

[0016] 2. The milling head connecting device of this CNC gantry machining center, through the set reinforcement mechanism, can push the inner spline one and the outer spline one to mesh with each other under the elastic action of the spring, thereby ensuring the stability of the threaded rod and preventing the threaded rod from easily rotating during disassembly, thus ensuring the stability of the connecting shaft installation connection. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a front view of the structure of this utility model;

[0019] Figure 2 This is a top view of the structure of this utility model;

[0020] Figure 3 for Figure 2 Enlarged structural diagram at point A in the middle;

[0021] Figure 4 This is a schematic diagram of the structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the milling head body.

[0023] In the diagram: 1. Connecting shaft; 2. Milling head body; 3. Connecting mechanism; 31. Socket; 32. Right angle plate; 33. Threaded rod; 34. Threaded plate; 35. Locking block; 36. Inserting block; 37. External spline two; 38. Internal spline two; 4. Reinforcing mechanism; 41. Support box; 42. Spring; 43. Protrusion; 44. Push shaft; 45. Internal spline one; 46. External spline one. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] This utility model provides the following technical solution:

[0027] Example 1

[0028] Combination Figures 1 to 5 A milling head connecting device for a CNC gantry machining center includes a connecting shaft 1, a connecting mechanism 3 at the right end of the connecting shaft 1, a reinforcing mechanism 4 at the top of the connecting mechanism 3, and a milling head body 2 at the right side of the connecting mechanism 3.

[0029] The connecting mechanism 3 includes a socket 31, which is fixedly connected to the right end of the connecting shaft 1. A right-angle plate 32 is fixedly connected to the outside of the socket 31. A threaded rod 33 is rotatably connected inside the right-angle plate 32. A threaded plate 34 is threadedly connected to the outer wall of the threaded rod 33. A locking block 35 is fixedly connected inside the threaded plate 34. A plug block 36 is fixedly connected to the left end of the milling head body 2. An external spline 37 is fixedly connected to the outer wall of the milling head body 2. An internal spline 38 is fixedly connected to the right side of the socket 31.

[0030] Furthermore, the inner ring of the second inner spline 38 meshes with the outer ring of the second outer spline 37, and an opening is provided on the left side of the second inner spline 38. The insert block 36 passes through the opening, allowing the insert block 36 to move through the opening.

[0031] Furthermore, the insert block 36 has slots on both the front and back, and the locking block 35 is movably connected to the inner wall of the slot, so that the insert block 36 can be inserted into the inside of the slot to achieve the purpose of limiting the position.

[0032] Furthermore, the socket 31 has openings on both the front and back, and the locking block 35 passes through the openings and moves, allowing the locking block 35 to move through the openings.

[0033] Furthermore, the threads on the outer walls of the two ends of the threaded rod 33 are in opposite directions, and a handwheel is fixedly connected to the front end of the threaded rod 33, which facilitates the rotation of the threaded rod 33 by the handwheel, thereby achieving the purpose of installation.

[0034] Example 2

[0035] See Figures 1 to 5 Furthermore, based on Embodiment 1, the reinforcement mechanism 4 includes a support box 41, which is fixedly connected to the top of the socket 31. A spring 42 is fixedly connected to the inner wall of the support box 41. A protrusion 43 is fixedly connected to the end of the spring 42 away from the support box 41. A push shaft 44 is fixedly connected to the top of the protrusion 43. An inner spline 45 is fixedly connected to one side of the protrusion 43. An outer spline 46 engages with the inner ring of the inner spline 45, which facilitates the reinforcement and limiting of the threaded rod 33.

[0036] Furthermore, a slot is provided at the top of the support box 41, through which the push shaft 44 passes, and the protrusion 43 is slidably connected to the inner wall of the support box 41, so that the push shaft 44 can push the protrusion 43 to move and compress the spring 42.

[0037] Furthermore, the external spline 46 is fixedly connected to the outer wall of the threaded rod 33, and the protrusion 43 penetrates the support box 41 and moves, so that the protrusion 43 can drive the internal spline 45 to move.

[0038] In actual operation, when this device is used, it can first be connected to the output end of the CNC gantry machining center through the connecting shaft 1. During long-term use, when it is necessary to disassemble, repair and replace the milling head body 2, the push shaft 44 can be pushed to move. The push shaft 44 can drive the protrusion 43 to move. The protrusion 43 can compress the spring 42, and the protrusion 43 can drive the inner spline 45 to move, so that the inner spline 45 can no longer mesh with the outer spline 46. At this time, the threaded rod 33 is in a rotatable state, so it is convenient for further disassembly. Similarly, under the elastic action of the spring 42, the inner spline 45 and the outer spline 46 can be pushed to mesh with each other, thereby ensuring the stability of the threaded rod 33. This prevents the threaded rod 33 from easily rotating during disassembly, ensuring the stability of the connection to the connecting shaft 1.

[0039] When the inner spline 45 is not engaged with the outer spline 46, the threaded rod 33 is in a rotatable state. At this time, the handwheel can be turned to rotate the threaded rod 33. Since the threaded rod 33 and the threaded plate 34 are threadedly connected, and the threaded plate 34 can slide and limit the movement on the outside of the right angle plate 32, the threaded plate 34 can drive the locking block 35 to be pulled out from the inside of the insert block 36, thus canceling the limitation on the insert block 36. Then, the insert block 36 can be pulled out from the inside of the socket 31 through the milling head body 2. At the same time, the outer spline 37 can be pulled out from the inside of the inner spline 38, thereby realizing the disassembly of the milling head body 2. The disassembly and assembly operations can be carried out without the aid of external tools, achieving good operational efficiency and facilitating the disassembly and assembly connection work.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A milling head connecting device for a CNC gantry machining center, comprising a connecting shaft (1), characterized in that: A connecting mechanism (3) is provided at the right end of the connecting shaft (1), a reinforcing mechanism (4) is provided at the top of the connecting mechanism (3), and a milling head body (2) is provided on the right side of the connecting mechanism (3). The connecting mechanism (3) includes a socket (31), which is fixedly connected to the right end of the connecting shaft (1). A right-angle plate (32) is fixedly connected to the outside of the socket (31). A threaded rod (33) is rotatably connected inside the right-angle plate (32). A threaded plate (34) is threadedly connected to the outer wall of the threaded rod (33). A locking block (35) is fixedly connected inside the threaded plate (34). A plug (36) is fixedly connected to the left end of the milling head body (2). An external spline II (37) is fixedly connected to the outer wall of the milling head body (2). An internal spline II (38) is fixedly connected to the right side of the socket (31).

2. The milling head connecting device for a CNC gantry machining center according to claim 1, characterized in that: The inner ring of the inner spline 2 (38) meshes with the outer ring of the outer spline 2 (37), and an opening is provided on the left side of the inner spline 2 (38), through which the insert block (36) passes.

3. The milling head connecting device for a CNC gantry machining center according to claim 1, characterized in that: The insert (36) has slots on both the front and back, and the slot (35) is movably connected to the inner wall of the slot.

4. The milling head connecting device for a CNC gantry machining center according to claim 1, characterized in that: The socket (31) has openings on both the front and back, and the locking block (35) passes through the openings and moves.

5. A milling head connecting device for a CNC gantry machining center according to claim 1, characterized in that: The threads on the outer walls of the two ends of the threaded rod (33) are in opposite directions, and a handwheel is fixedly connected to the front end of the threaded rod (33).

6. A milling head connecting device for a CNC gantry machining center according to claim 1, characterized in that: The reinforcement mechanism (4) includes a support box (41), which is fixedly connected to the top of the socket (31). A spring (42) is fixedly connected to the inner wall of the support box (41). A protrusion (43) is fixedly connected to one end of the spring (42) away from the support box (41). A push shaft (44) is fixedly connected to the top of the protrusion (43). An inner spline (45) is fixedly connected to one side of the protrusion (43). An outer spline (46) is engaged with the inner ring of the inner spline (45).

7. A milling head connecting device for a CNC gantry machining center according to claim 6, characterized in that: The top of the support box (41) has a slot, the push shaft (44) passes through the slot, and the protrusion (43) is slidably connected to the inner wall of the support box (41).

8. A milling head connecting device for a CNC gantry machining center according to claim 6, characterized in that: The external spline (46) is fixedly connected to the outer wall of the threaded rod (33), and the protrusion (43) passes through the support box (41) and moves.